Tinging principle

Fig. 4. Opera ting principles of various laboratory lubricant-test machines.

Robert Porrett (London 22 September 1783-25 November 1868) was Chief Clerk in the Ordnance Department in the Tower of London. He discovered electroendosmosis independently of Reuss (see p. 737). By boiling Prussian blue with potassium sulphide solution he thought it was reduced to a salt of prussous acid, which he obtained by distilling a prussite with an acid. He describes the red colour formed with ferric salts and calls prussous acid the tinging principle . In 1814, after finding that the acid contains prussic acid... 

Semiconductor materials are rather unique and exceptional substances (see Semiconductors). The entire semiconductor crystal is one giant covalent molecule. In benzene molecules, the electron wave functions that describe probabiUty density ate spread over the six ting-carbon atoms in a large dye molecule, an electron might be delocalized over a series of rings, but in semiconductors, the electron wave-functions are delocalized, in principle, over an entire macroscopic crystal. Because of the size of these wave functions, no single atom can have much effect on the electron energies, ie, the electronic excitations in semiconductors are delocalized. 

As it arrives In this country, this oil Is tinged of a peculiar and characteristic orange-red color, which renders it unfit for use in this manufacture in its natural state. The coloring matter, it should bo observed, is not proper to the pure oil, which, in a state of chemical purity, is perfectly colorless. Tlieve is associated with the oil, however, and oxiractcd with It from the palm a peculiar principle, which in the Course of time undergoes spontaneous decomposition, assuming at the same time a characteristic color,... 

Extension of the reaction scheme of Figure 1 can lead, in principle, to some tetracyclic, fused-ring, aioinatics (e.g. chiy sene) and to some larger systems, but it cannot lead to types based on (I), (IT) or (III). The formation of the latter indicates the operation of other reaction paths such as those involving direct condensation between aromatic nuclei (18,19), and ting formation by side-chain cycUzadon (19,20), such as Reactions 2-4. 

However, the Alchemists consider this white Lapis only to be half a birth because it is totally lunar. The fiery solar principle, the Central-Fire of the Anima from which it was separated, is at this point, still totally missing. And, since this anima is not yet cleansed and exalted, that means it is not tinged, the work can still be destroyed even after the first whitening, when the Alchemist endeavors too eagerly to commence with the projection (with transmutation of the metals), and when he leaves the work at this point, where it actually should begin. 

It is necessary to understand the difference between our two Sulphurs, for otherwise much will appear incomprehensible and contradictory that is, in fact, quite logical and sequential. In the first place we have found it unanimously agreed that quicksilver and sulphur are our two first principles, the former being developed by the latter, which, we are also told, is the coagulating agent. Furthermore, it is the Sulphur that tinges and colours the Mercury. 

After a while I saw the fundamental principles of this art, then I began working out the Best Tincture (but they all proceed, in a most indescribable manner from the same root), when I came to the end of the Work I found such a beautiful red color as no scarlet can compare with, and such a treasure as words cannot tell, and which can be infinitely augmented. One part tinged 1,500 parts Silver into Gold. I will not tell how after manifold augmentation what quantities of Silver and other metal I tinged after the MULTIPLICATION. I was amazed. 

If these equations are used to substitute the individual concentrations in the differ-.ent formal kinetic rate laws, it becomes possible in principle to split the resulting rate laws into one term repres ting the initial rate ro and a second, which stands for a dimensionless reaction rate... 

The principles of light absorption have thus been worked out well. Yet, the details are difficult to predict. That is, what combination of chemical entities with what structure would produce what color cannot be precisely predicted with current theories. Not that the theories are deficient, but the theoretical calculations necessary cannot be done very precisely for relatively complicated systems. Besides, the production of ceramics is in general difficult to control. That is, it is difficult to make a pot precisely the way one wants. [Though, today, industrial production of ceramics is fairly well controlled]. All these conditions make coloring of ceramics a kind of arts, rather than science. In order to obtain an exact tinge of color, one has to follow rigorously a prescribed procedure that has been laboriously developed by trial and error. 

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